Imaging observation of SN 1987A at gamma-ray energies

Journal Article · Tue Nov 01 04:00:00 EST 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/185318· OSTI ID:6534310

Cook, W R; Palmer, D M; Prince, T A; Schindler, S M; Starr, C H

The Caltech imaging gamma-ray telescope was launched by balloon from Alice Springs, Australia for observations of SN 1987A during November 1987. The preliminary results presented here are derived from 8200 s of instrument live time on the supernova and 2500 s on the Crab Nebula and pulsar at a float altitude of 36 km. Images of the SN 1987A region at gamma-ray energies confirming that the bulk of the gamma-ray emission comes from the supernova and not from LMC X-1. These flux measurements are compared to recent predictions concerning the distribution of Co-56 in the supernova ejecta. The data are consistent with models invoking moderate mixing of core material into the envelope. 24 references.

• Research Organization: California Institute of Technology, Pasadena (USA)
• OSTI ID: 6534310
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 334; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COBALT 56
COBALT ISOTOPES
COMPARATIVE EVALUATIONS
DAYS LIVING RADIOISOTOPES
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
ERUPTIVE VARIABLE STARS
GALAXIES
GAMMA RADIATION
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
MAGELLANIC CLOUDS
MASS TRANSFER
MATHEMATICAL MODELS
MIXING
MONTE CARLO METHOD
NUCLEI
ODD-ODD NUCLEI
RADIATION FLUX
RADIATIONS
RADIOISOTOPES
STAR MODELS
STARS
SUPERNOVAE
TELESCOPES
VARIABLE STARS